PAC09 - List of Authors (Gerbaux, M.)

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Gerbaux, M.

Paper	Title	Page
WE5PFP046	Dark Current Simulation for the CLIC T18 High Gradient Structure	2101
	Z. Li, A.E. Candel, L. Ge, K. Ko, C.-K. Ng, G.L. Schussman SLAC, Menlo Park, California S. Döbert, M. Gerbaux, A. Grudiev, W. Wuensch CERN, Geneva T. Higo, S. Matsumoto, K. Yokoyama KEK, Ibaraki
	Funding: This work was supported by DOE Contract No. DE-AC02-76SF00515 and used resources of NERSC supported by DOE Contract No. DE-AC02-05CH11231, and of NCCS supported by DOE Contract No. DE-AC05-00OR22725. Normal conducting accelerator structures such as the X-Band NLC structures and the CLIC structures have been found to suffer damage due to RF breakdown and/or dark current when processed to high gradients. Improved understanding of these issues is desirable for the development of structure designs and processing techniques that improve the structure high gradient performance. While vigorous experimental efforts have been put forward to explore the gradient parameter space via high power testing, comprehensive numerical multipacting and dark current simulations would complement measurements by providing an effective probe for observing interior quantities. In this paper, we present studies of multipacting, dark current, and the associated surface heating in high gradient accelerator structures using the parallel finite element simulation code Track3P. Comparisons with the high power test of the CLIC accelerator structures will be presented.

Paper

Title

Page

WE5PFP046

Dark Current Simulation for the CLIC T18 High Gradient Structure

2101

Z. Li, A.E. Candel, L. Ge, K. Ko, C.-K. Ng, G.L. Schussman
SLAC, Menlo Park, California
S. Döbert, M. Gerbaux, A. Grudiev, W. Wuensch
CERN, Geneva
T. Higo, S. Matsumoto, K. Yokoyama
KEK, Ibaraki

Funding: This work was supported by DOE Contract No. DE-AC02-76SF00515 and used resources of NERSC supported by DOE Contract No. DE-AC02-05CH11231, and of NCCS supported by DOE Contract No. DE-AC05-00OR22725.

Normal conducting accelerator structures such as the X-Band NLC structures and the CLIC structures have been found to suffer damage due to RF breakdown and/or dark current when processed to high gradients. Improved understanding of these issues is desirable for the development of structure designs and processing techniques that improve the structure high gradient performance. While vigorous experimental efforts have been put forward to explore the gradient parameter space via high power testing, comprehensive numerical multipacting and dark current simulations would complement measurements by providing an effective probe for observing interior quantities. In this paper, we present studies of multipacting, dark current, and the associated surface heating in high gradient accelerator structures using the parallel finite element simulation code Track3P. Comparisons with the high power test of the CLIC accelerator structures will be presented.